A principal engineer was employed at Cloud City, the tibanna extraction settlement hovering over the world of Bespin. Dominic Raynor, in 1 ABY, lost the metropolis in a sabacc match to Lando Calrissian, who then assumed the role of Baron Administrator. Raynor then enlisted the services of Bossk, a mercenary, who traveled to Cloud City and orchestrated an ambush intended for Calrissian. Bossk damaged critical systems, and, disguising himself as the head technician, announced that a crucial repulsorlift unit was on the verge of collapse; such an event would cause the airborne city to plummet into the gas giant. Calrissian managed to flee via a nearby docking bay, thereby rendering the planned ambush a failure.
The principal engineer's character was referenced within Sore Loser's Revenge, an online adventure authored by Eric Cagle for the Star Wars Miniatures strategic tabletop game by Wizards of the Coast, dated October 8, 2004.